21583947

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{419}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 14542773

約数列:

[1, 3, 7, 11, 21, 33, 77, 223, 231, 419, 669, 1257, 1561, 2453, 2933, 4609, 4683, 7359, 8799, 13827, 17171, 32263, 51513, 93437, 96789, 280311, 654059, 1027807, 1962177, 3083421, 7194649, 21583947]

約数ペア:

[(1, 21583947), (3, 7194649), (7, 3083421), (11, 1962177), (21, 1027807), (33, 654059), (77, 280311), (223, 96789), (231, 93437), (419, 51513), (669, 32263), (1257, 17171), (1561, 13827), (2453, 8799), (2933, 7359), (4609, 4683)]